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Data Design and Interface Overview for Project Phase 2

This document provides an in-depth overview of the data design and interface design phases of Project Phase 2. It includes essential components such as the Entity-Relationship (ER) diagram, data dictionary tables, and the overall database schema. Additionally, it presents the user interface design overview, navigation hierarchy, and user function interfaces. The modular decomposition section details how subsystems are broken down into modules using two models: the object model and the pipeline/data-flow model, which transform inputs into outputs.

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Data Design and Interface Overview for Project Phase 2

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  1. IT323 Project Phase#2

  2.  - Data Design • ER diagram • Data dictionary tables. • Database schema

  3.  - Interface Design • User Interface Design overview • Navigation Hierarchy • User function (or use case) Interfaces

  4. Modular Decomposition/Structure Chart Sub-systems are decomposed into modules. • There are two modular decomposition models: • An object model where the system is decomposed into interacting object. • A pipeline or data-flow model where the system is decomposed into functional modules which transform inputs to outputs.

  5. Example..

  6. Example ..

  7. (Chat Room System )Example ..

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